CN218097654U - Transfer chain platform truck locating pin precision detection device - Google Patents

Abstract

The utility model discloses a precision detection device for positioning pins of a conveyor line trolley, which comprises a positioning pin detection device arranged on a conveyor line platform, and an X-direction limiting device, a Y-direction limiting device and a Z-direction limiting device which are used for limiting the trolley; the positioning pin detection device is provided with at least three reference measurement plates, sliding pin aligning assemblies are symmetrically arranged on two sides of the positioning pin detection device, and pin aligning holes are formed in the sliding pin aligning assemblies. The utility model discloses can improve the locating pin precision of platform truck, eliminate the locating pin precision of platform truck bad, promote the operating stability of transfer chain platform truck.

Description

Transfer chain platform truck locating pin precision detection device

Technical Field

The utility model relates to an auto industry weld automatic transfer chain technical field in loading workshop, especially relate to a transfer chain platform truck locating pin precision detection device.

Background

In the automobile manufacturing field, transport class equipment is indispensable, generally need use a large amount of transport platform trucks to transport automobile body assembly spare, and transport platform trucks has two locating pins, restricts X of automobile body assembly spare respectively to, Y is to, and the locating pin undertakes the location automobile body assembly spare, ensures that transport platform trucks can realize the function of receiving, carrying, putting the car. The precision of the positioning pin is directly related to whether the conveying line can normally operate. The locating pin of current platform truck uses fixed utensil of examining to compare the adjustment usually, ensures its positioning accuracy. However, the prior fixed gauge has the following problems: 1. the precision of the fixed checking fixture cannot be calibrated and measured by a three-coordinate measuring instrument, and the precision cannot be guaranteed after the fixed checking fixture is used for a long time and is deformed and abnormal; 2. the position of the fixed checking tool for the pin hole cannot be adjusted; 3. the platform truck is fixed to be examined X, Y, Z department and can't be spacing to, and the deviation easily appears in the platform truck, leads to appearing the adjustment error.

SUMMERY OF THE UTILITY MODEL

The utility model provides a transfer chain platform truck locating pin precision detection device can shorten the locating pin precision of platform truck and mark and adjust the time, carries out the accuracy to the locating pin precision of platform truck fast and detects, can improve the locating pin precision of platform truck, and the locating pin precision of eliminating the platform truck is bad, promotes the operating stability of transfer chain platform truck.

The technical scheme of the utility model as follows:

a precision detection device for a positioning pin of a conveyor line trolley comprises a positioning pin detection device arranged on a conveyor line platform, and an X-direction limiting device, a Y-direction limiting device and a Z-direction limiting device which are used for limiting the trolley;

the positioning pin detection device is provided with at least three reference measurement plates, sliding pin aligning assemblies are symmetrically arranged on two sides of each reference measurement plate, and pin aligning holes are formed in the sliding pin aligning assemblies.

When the device is used, a space measurement coordinate is established on the basis of any three reference measurement plates through a three-coordinate measuring instrument, so that the positions of the pin holes of the two sliding pin aligning assemblies are quickly calibrated according to the specified coordinate, and if the pin holes cannot be aligned with the specified coordinate, the positions of the pin holes can be adjusted through the sliding pin aligning assemblies, so that the pin holes are accurately calibrated in the specified coordinate; then, moving the trolley to place the positioning pin below the pin hole, then limiting the trolley through an X-direction limiting device, a Y-direction limiting device and a Z-direction limiting device, and finally observing whether the positioning pins on two sides of the trolley can be aligned and inserted into the pin hole or not so as to judge whether the precision of the positioning pin is abnormal or not; if the accuracy of the positioning pin is qualified, if the accuracy is abnormal, the positioning pin needs to be adjusted to be aligned with the pin hole by hands, and then the accuracy adjustment of the positioning pin can be completed.

The utility model discloses a detection device can use three-coordinate measuring instrument to mark the measurement, can carry on spacingly to the platform truck, finally realizes through the position of three-coordinate measuring instrument accurate measurement adjustment to the pinhole, detects whether to aim at the pinhole with the locating pin of platform truck, ensures the demand that can satisfy the uniformity that big batch platform truck's locating pin precision detected, stability.

Furthermore, Z is to stop device includes platform truck guide rail, guide rail mount pad, two platform truck guide rail parallel arrangement, the platform truck guide rail passes through the guide rail mount pad is fixed on the transfer chain platform.

The trolley slides in through the trolley guide rail to enable the positioning pin to move to the position below the pin hole to be detected, and the trolley guide rail enables the trolley to be separated from the track of the trolley by about 5mm, so that Z-direction positioning of the trolley is achieved.

Furthermore, the positioning pin detection device is provided with a gantry frame, the gantry frame transversely spans two trolley guide rails, the bottoms of two sides of the gantry frame are fixed on the conveying line platform through frame bases, the two sliding pin aligning assemblies are symmetrically installed on two sides of the gantry frame, pin aligning holes are arranged above the trolley guide rails, and the four reference measurement plates are respectively arranged at four corners of the gantry frame.

The gantry frame is formed by welding 7 square pipes and is welded with the frame base, the frame base is fixed on the conveying line platform through bolts, and the gantry frame is used for supporting and installing two sliding pin aligning assemblies so that the two sliding pin aligning assemblies can be arranged on two sides of the trolley to detect whether the precision of the positioning pin is abnormal. The height of the gantry frame is enough to ensure that the trolley can slide to the sliding pin aligning assembly from the trolley guide rail, so that the positioning pin of the trolley is positioned below the pin hole for detection.

Further, the sliding pin pair assembly comprises a base mounting plate, a linear guide rail, a linear sliding block, a connecting block and a detection block;

the base mounting plate is fixedly mounted on the gantry frame, the linear guide rail is fixed on the base mounting plate, the linear sliding block is connected to the linear guide rail in a sliding mode to form a Z-direction linear sliding structure, the connecting block is an L-shaped plate, one end of the connecting block is mounted on the linear sliding block through a plurality of gaskets, the other end of the connecting block is connected with the detection block through a plurality of gaskets, and the pin aligning holes are formed in the bottom of the detection block.

The linear sliding block and the linear guide rail form a Z-direction linear sliding structure, so that the detection block can move in the Z direction; the linear sliding block is connected with the connecting block by using a bolt, and the Y-direction position adjustment of the detection block to the pin hole can be realized by adding or subtracting the quantity of gaskets between the linear sliding block and the connecting block; the connecting block and the detecting block are connected through the bolt, the quantity of gaskets between the connecting block and the detecting block can be increased or decreased, and the X-direction adjustment of the detecting block to the pin hole is realized. Before the detection block is used, the pin hole aligning precision of the detection block is measured through a three-coordinate measuring instrument, whether the pin hole aligning position is in a specified calibration position or not is observed, and if the position precision is abnormal, the pin hole aligning position is adjusted in the X direction and the Y direction so that the pin hole aligning position is in the calibration position. After the positions of the pin holes are calibrated, the linear sliding block slides upwards along the linear guide rail, so that the connecting block drives the detection block to move upwards, and the positions of the pin holes are lifted and positioned at positions to be detected; during detection, the trolley slides into the support along the trolley guide rail, the positioning pin is arranged below the pin hole and limited by the X-direction limiting device, the Y-direction limiting device and the Z-direction limiting device, then the linear sliding block slides downwards along the linear guide rail to enable the position of the pin hole to descend to be at a detection position, if the pin hole is interfered with the positioning pin of the trolley, the accuracy of the positioning pin of the trolley is abnormal, the positioning pin needs to be manually adjusted to be aligned with the pin hole, interference is avoided, and the accuracy adjustment of the positioning pin can be completed.

Further, the top of connecting block is connected with the handle, the grip joint of handle is in the top breach department of base mounting panel.

The handle adopts rotatable handle, exerts oneself the connecting block through the handle to make sharp slider slide along linear guide. Before detection, after the positions of the pin holes are calibrated, the linear sliding block is lifted through the handle, the grip of the handle is clamped at the notch of the top of the base mounting plate to form limit on the linear sliding block, and the pin holes are located at the positions to be detected; after the positioning pin of the trolley is in place, the handle of the handle is separated from the notch, and the handle is rotated, so that the linear sliding block is not limited any more, and under the action of gravity, the linear sliding block descends along the linear guide rail, so that the pin hole is moved downwards, whether the pin hole is interfered with the positioning pin of the trolley or not is observed, and whether the accuracy of the positioning pin is abnormal or not is judged.

Furthermore, the reference measuring plate is provided with a measuring hole, and a dustproof cover is additionally arranged to protect the measuring hole.

The benchmark is measured the board and is formed by the processing of smart steel, has 1 measuring aperture on the board to it is used for protecting the measuring aperture to install the shield additional. The three-coordinate measuring instrument can utilize the measuring holes of any 3 reference measuring plates to establish a space measuring coordinate, so that the pin hole positions of the sliding pin aligning component are accurately calibrated.

Furthermore, the X-direction limiting device is arranged between the two trolley guide rails and comprises a limiting block, a clamping block, a propelling cylinder, a limiting guide rail and a fixing frame;

the limit guide rail and the propulsion cylinders are fixed on the conveying line platform through the fixing frame, the limit blocks and the clamping blocks are respectively connected to two sides of the limit guide rail in a sliding mode, and the two propulsion cylinders are respectively driven to move towards or away from the limit guide rail in opposite directions.

After the trolley is in place, the front cross beam of the trolley is arranged between the limiting block and the clamping block, the propulsion cylinders on the two sides are driven at the moment, the limiting block and the clamping block are close to each other to clamp the front cross beam of the trolley, the X-direction action of the trolley can be limited, and the X-direction positioning of the trolley is realized.

Furthermore, a clamping gap formed when the limiting block and the clamping block approach to each other is matched with the shape of the front cross beam of the trolley.

Furthermore, the Y-direction limiting devices are four in number and are distributed at two ends of the trolley guide rails to limit the two sides of the trolley in the Y direction.

Furthermore, the Y-direction limiting device comprises a clamping block, a swing arm, a powerful clamping cylinder and a supporting seat;

powerful die clamping cylinder passes through the supporting seat to be fixed on the transfer chain platform, powerful die clamping cylinder's output with the one end of swing arm is connected, is used for the drive the swing arm carries out 90 degrees swings, the clamp splice is installed the end of swing arm.

The powerful clamping cylinder is controlled by the valve plate, and can be automatically or manually operated after the trolley is positioned in the X direction and the Z direction, so that the powerful clamping cylinder drives the swing arm to turn over for 90 degrees, and the clamping blocks of the four Y-direction limiting devices clamp the side face of the trolley from two sides, so that Y-direction positioning of the trolley is realized.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the device of the utility model can use the three-coordinate measuring instrument to measure and calibrate the pin hole position of the sliding pin aligning component, and can realize micro-adjustment of the pin hole position through the sliding pin aligning component, so that the pin hole in the device can keep stable detection precision for a long time; the device can be spacing to X, Y, Z of transfer chain platform truck for the platform truck can be carried out the locating pin precision by accurate positioning and detect, avoids appearing adjustment error.

Drawings

Fig. 1 is a schematic structural view of the transfer line trolley positioning pin precision detection device of the present invention;

FIG. 2 is a schematic structural view of a Z-direction limiting device;

FIG. 3 is a schematic structural view of a locating pin detection device;

FIG. 4 is a schematic view of the slide pin assembly;

FIG. 5 is a schematic view of a reference measuring plate;

FIG. 6 is a schematic structural view of the X-direction limiting device;

FIG. 7 is a schematic view of the open or clamped state of the Y-direction stopper;

fig. 8 is a schematic structural view of the carriage.

In the figure: the device comprises an X-direction limiting device 1, a limiting block 101, a clamping block 102, a propelling cylinder 103, a limiting guide rail 104, a fixing frame 105, a Y-direction limiting device 2, a clamping block 201, a swing arm 202, a powerful clamping cylinder 203, a supporting seat 204, a Z-direction limiting device 3, a trolley guide rail 301, a guide rail mounting seat 302, a reference measuring plate 4, a measuring hole 401, a sliding pin pair assembly 5, a pin pair hole 501, a base mounting plate 502, a linear guide rail 503, a linear sliding block 504, a connecting block 505, a detecting block 506, a positioning pin 6, a gantry frame 7, a frame base 8 and a handle 9.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the present embodiments, certain elements of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting the present patent.

Example 1:

as shown in fig. 1 to 8, a conveyor line trolley positioning pin precision detection device comprises a positioning pin detection device installed on a conveyor line platform (not shown in the figure), and an X-direction limiting device 1, a Y-direction limiting device 2 and a Z-direction limiting device 3 for limiting a trolley;

the positioning pin detection device is provided with at least three reference measuring plates 4, sliding pin aligning assemblies 5 are symmetrically arranged on two sides of the positioning pin detection device, each sliding pin aligning assembly 5 is provided with a pin aligning hole 501, a three-coordinate measuring instrument (not shown in the figure) establishes a space measuring coordinate based on any three reference measuring plates 4, so that the positions of the pin aligning holes 501 of the two sliding pin aligning assemblies 5 are calibrated, a positioning pin 6 of the trolley moves to the position below the pin aligning holes 501, the trolley is limited through the X-direction limiting device 1, the Y-direction limiting device 2 and the Z-direction limiting device 3, whether the positioning pin 6 can be aligned and inserted into the pin aligning holes 501 is detected, and whether the precision of the positioning pin 6 is abnormal is judged.

The utility model discloses a transfer chain platform truck locating pin precision detection device is when using, establish the space survey coordinate through three coordinate measuring apparatu earlier based on arbitrary three benchmark measuring board 4 to slide two to the position of pinning subassembly 5 to pinhole 501 and carry out fast calibration according to appointed coordinate, if can not aim at appointed coordinate to pinhole 501, the accessible slides at this moment and adjusts the position to pinhole 501 to pinning subassembly 5, so that arrange appointed coordinate in to pinhole 501 and carry out the accurate calibration; then, the trolley is moved to place the positioning pin 6 below the pin hole 501, then the trolley is limited by the X-direction limiting device 1, the Y-direction limiting device 2 and the Z-direction limiting device 3, and finally whether the positioning pins 6 on the two sides of the trolley can be aligned with and inserted into the pin hole 501 or not is observed, if yes, the precision of the positioning pins 6 is qualified, if no, the precision is abnormal, the positioning pins 6 are required to be adjusted to be aligned with the pin hole 501 by hands, and the precision adjustment of the positioning pins 6 can be completed.

The utility model discloses a detection device can use three-coordinate measuring instrument to mark the measurement, can carry on spacingly to the platform truck, finally realizes through three-coordinate measuring instrument accurate measurement adjustment to the position of pinhole 501, detects whether to aim at pinhole 501 with the locating pin 6 of platform truck, ensures can satisfy the uniformity that 6 precision of locating pin of big batch platform truck detected, the demand of stability.

Referring to fig. 2, in this embodiment, the Z-direction limiting device 3 includes a trolley guide rail 301 and a guide rail mounting seat 302, the two trolley guide rails 301 are arranged in parallel, and the trolley guide rail 301 is fixed on the conveyor line platform through the guide rail mounting seat 302.

The carriage is supported by the carriage rail 301 sliding in so that the positioning pin 6 moves below the pin hole 501 for detection, and the carriage rail 301 separates the carriage from its own track by about 5mm, thereby realizing Z-direction positioning of the carriage.

Referring to fig. 1 and 3, in the present embodiment, the positioning pin detection apparatus is provided with a gantry frame 7, the gantry frame 7 spans two trolley guide rails 301, bottoms of two sides of the gantry frame 7 are fixed on the conveyor line platform through a frame base 8, two sliding pin alignment assemblies 5 are symmetrically installed on two sides of the gantry frame 7, pin alignment holes 501 are disposed above the trolley guide rails 301, and four reference measurement plates 4 are disposed at four corners of the gantry frame 7, respectively.

The gantry frame 7 of this embodiment is formed by 7 square pipes by welding, and welds with the frame base 8, and the frame base 8 utilizes the bolt fastening on the transfer chain platform, and the gantry frame 7 is used for supporting installation for two slip counter pin subassemblies 5 to make two slip counter pin subassemblies 5 arrange the both sides of platform truck in and detect whether the precision exists unusually to locating pin 6. The gantry frame 7 is high enough to ensure that the trolley can slide from the trolley guide rail 301 to the sliding pin pair assembly 5, so that the positioning pin 6 of the trolley is positioned below the pin hole 501 for detection.

Referring to fig. 4, the sliding pin pair assembly 5 includes a base mounting plate 502, a linear guide rail 503, a linear slider 504, a connecting block 505, and a detecting block 506; the base mounting plate 502 is fixedly mounted on the gantry frame 7, the linear guide rail 503 is fixed on the base mounting plate 502, the linear slider 504 is connected on the linear guide rail 503 in a sliding manner to form a Z-direction linear sliding structure, the connecting block 505 is an L-shaped plate, one end of the connecting block is mounted on the linear slider 504 through a plurality of gaskets, the other end of the connecting block is connected with the detection block 506 through a plurality of gaskets, and the bottom of the detection block 506 is provided with the pin aligning holes 501.

The linear slider 504 and the linear guide rail 503 form a linear sliding structure in the Z direction, so that the detection block 506 can move in the Z direction; the linear slide block 504 is connected with the connecting block 505 through bolts, and the Y-direction position of the pin hole 501 of the detection block 506 can be adjusted by adding or subtracting the number of gaskets between the linear slide block 504 and the connecting block 505; the connecting block 505 and the detecting block 506 are connected through bolts, and the X-direction adjustment of the pin holes 501 of the detecting block 506 can be realized by adding or subtracting the number of gaskets between the connecting block 505 and the detecting block 506. Before use, the precision of the pin hole 501 of the detection block 506 is measured by a three-coordinate measuring machine, whether the position of the pin hole 501 is at a designated calibration position or not is observed, and if the position precision is abnormal, the pin hole 501 is adjusted in the X direction and the Y direction so as to be at the calibration position. After the position of the pin hole 501 is calibrated, the linear sliding block 504 slides upwards along the linear guide rail 503, so that the connecting block 505 drives the detection block 506 to move upwards, and the position of the pin hole 501 is lifted to be at a position to be detected; during detection, the trolley slides in the support along the trolley guide rail 301, the positioning pin 6 is arranged below the pin hole 501 and limited by the X-direction limiting device 1, the Y-direction limiting device 2 and the Z-direction limiting device 3, then the linear sliding block 504 slides downwards along the linear guide rail 503, so that the position of the pin hole 501 is lowered and is located at a detection position, if the pin hole 501 and the positioning pin 6 of the trolley are interfered, the accuracy of the positioning pin 6 of the trolley is abnormal, the positioning pin 6 needs to be adjusted to be aligned with the pin hole 501 by hands, interference is avoided, and the accuracy adjustment of the positioning pin 6 can be completed.

Referring to fig. 5, in the present embodiment, a measuring hole 401 is formed in the reference measuring plate 4, and a dust cover (not shown) is additionally installed to protect the measuring hole 401. The reference measuring plate 4 is formed by processing fine steel, and is provided with 1 measuring hole 401 and a dust cover for protecting the measuring hole 401. The coordinate measuring machine can establish a space measuring coordinate by using the measuring holes 401 of any 3 reference measuring plates 4, so that the positions of the pin holes 501 of the sliding pin pair component 5 can be accurately calibrated.

Referring to fig. 6, in this embodiment, the X-direction limiting device 1 is disposed between two trolley guide rails 301, and the X-direction limiting device 1 includes a limiting block 101, a clamping block 102, a propulsion cylinder 103, a limiting guide rail 104, and a fixing frame 105; the limit guide rail 104 and the propulsion cylinders 103 are fixed on the conveying line platform through the fixing frame 105, the limit blocks 101 and the clamping blocks 102 are respectively connected to two sides of the limit guide rail 104 in a sliding mode, and the two propulsion cylinders 103 are respectively driven to move towards or away from the limit guide rail 104 in opposite directions. The clamping gap formed when the limiting blocks 101 and the clamping blocks 102 approach each other is matched with the shape of the front cross beam of the trolley.

When the trolley is in place, the front cross beam of the trolley is arranged between the limiting block 101 and the clamping block 102, the propulsion cylinders 103 on the two sides are driven at the moment, the limiting block 101 and the clamping block 102 are made to approach to each other oppositely to clamp the front cross beam of the trolley, the X-direction action of the trolley can be limited, and the X-direction positioning of the trolley is achieved.

Referring to fig. 7, in the present embodiment, four Y-direction limiting devices 2 are provided, and the four Y-direction limiting devices 2 are distributed at two ends of the two trolley guide rails 301 to perform Y-direction limiting on two sides of the trolley.

The Y-direction limiting device 2 comprises a clamping block 201, a swing arm 202, a powerful clamping cylinder 203 and a supporting seat 204; the strong clamping cylinder 203 is fixed on the conveying line platform through a supporting seat 204, the output end of the strong clamping cylinder 203 is connected with one end of the swing arm 202 to drive the swing arm 202 to swing for 90 degrees, and the clamping block 201 is installed at the tail end of the swing arm 202.

The powerful clamping cylinder 203 of the embodiment is controlled by a valve plate, and after the trolley is positioned in the X direction and the Z direction, the powerful clamping cylinder 203 can be automatically or manually operated, so that the powerful clamping cylinder 203 drives the swing arm 202 to turn over for 90 degrees, and the clamping blocks 201 of the four Y-direction limiting devices 2 clamp the side surface of the trolley from two sides, thereby realizing the Y-direction positioning of the trolley.

The specific process of the embodiment for detecting the accuracy of the positioning pin 6 of the trolley is as follows:

1. firstly, establishing a space measurement coordinate based on any three reference measurement plates 4 by a three-coordinate measuring instrument, so as to quickly calibrate the positions of the pin aligning holes 501 of the two sliding pin aligning components 5 according to a specified coordinate (a set detection standard position);

2. the trolley slides in through the trolley guide rail 301 to be supported, so that the trolley is positioned in the Z direction, and the positioning pin 6 on the trolley moves to the position below the pin hole 501;

3. at the moment, the front cross beam of the trolley is arranged between the limiting block 101 and the clamping block 102, the propulsion cylinders 103 on the two sides are driven, the limiting block 101 and the clamping block 102 are made to approach to each other oppositely to clamp the front cross beam of the trolley, and the X-direction positioning of the trolley is realized;

4. the powerful clamping cylinder 203 is automatically or manually operated, so that the powerful clamping cylinder 203 drives the swing arm 202 to turn over for 90 degrees, the clamping blocks 201 of the four Y-direction limiting devices 2 clamp the side surfaces of the trolley from two sides, and Y-direction positioning of the trolley is realized;

5. sliding the linear slider 504 of the slide pin pair unit 5 downward along the linear guide 503 to lower the position of the pin hole 501 to a detection position, and observing whether the pin hole 501 interferes with the positioning pin 6 of the carriage, thereby determining whether the accuracy of the positioning pin 6 is abnormal;

6. if the accuracy of the positioning pin 6 is abnormal, the positioning pin 6 is adjusted to be aligned with the pin hole 501 by a human hand,

interference is not generated, and the precision adjustment of the positioning pin 6 is completed; otherwise, the processing is not carried out.

The device of the utility model can use a three-coordinate measuring instrument to measure and calibrate the position of the pin hole 501 of the sliding pin aligning component 5, and can realize micro-adjustment of the position of the pin hole 501 through the sliding pin aligning component 5, so that the pin hole 501 in the device can keep stable detection precision for a long time; the device can be spacing to X, Y, Z of transfer chain platform truck for the platform truck can be carried out 6 precision detections of locating pin by the accurate positioning, avoids appearing adjustment error.

Example 2:

as shown in fig. 4, this embodiment is similar to embodiment 1, except that in this embodiment, a handle 9 is connected to the top of the connecting block 505, and a grip of the handle 9 is clamped at a notch on the top of the base mounting plate 502.

The handle 9 is a rotatable handle, and the handle 9 is used for exerting force on the connecting block 505 to enable the linear sliding block 504 to slide along the linear guide rail 503. Before detection, after the position of the pin hole 501 is calibrated, the linear sliding block 504 is lifted up through the handle 9, a grip of the handle 9 is clamped at a notch at the top of the base mounting plate 502 to form limiting on the linear sliding block 504, and the pin hole 501 is located at a position to be detected; after the positioning pin 6 of the trolley is in place, the grip of the handle 9 is disengaged from the notch, and the grip is rotated, so that the linear slider 504 is not limited any more, and under the action of gravity, the linear slider 504 descends along the linear guide rail 503, so that the pin hole 501 moves downwards, whether the pin hole 501 is interfered with the positioning pin 6 of the trolley is observed, and whether the accuracy of the positioning pin 6 is abnormal or not can be judged.

Example 3:

the embodiment is similar to embodiment 1, except that in this embodiment, a Z-direction linear sliding structure formed by the linear guide 503 and the linear slider 504 may be replaced by a linear module (not shown), the linear module is fixedly mounted on the base mounting plate 502, the slider of the linear module is connected to the connecting block 505, and the slider drives the connecting block 505 to move up and down by driving a motor of the linear module, so as to intelligently adjust the position of the pin hole 501 without manually lifting or lowering the pin hole.

Because the positioning pins 6 of a plurality of trolleys need to be subjected to batch detection, the linear sliding block 504 is continuously extracted or descended by hands to lift along the linear guide rail 503, fatigue is easily generated, and the detection efficiency is easily reduced, so that the embodiment is based on the fact that the linear module is arranged to drive the detection block 506 to lift, the precision detection of the pin holes 501 on the positioning pins 6 is rapidly realized, and the detection efficiency can be effectively improved.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The precision detection device for the positioning pin of the conveyor line trolley is characterized by comprising a positioning pin detection device arranged on a conveyor line platform, an X-direction limiting device (1), a Y-direction limiting device (2) and a Z-direction limiting device (3) for limiting the trolley;

the positioning pin detection device is provided with at least three reference measurement plates (4), sliding pin aligning assemblies (5) are symmetrically arranged on two sides of the positioning pin detection device, and pin aligning holes (501) are formed in the sliding pin aligning assemblies (5).

2. The conveyor line trolley positioning pin precision detection device is characterized in that the Z-direction limiting device (3) comprises a trolley guide rail (301) and a guide rail mounting seat (302), the two trolley guide rails (301) are arranged in parallel, and the trolley guide rails (301) are fixed on a conveyor line platform through the guide rail mounting seat (302).

3. The conveyor line trolley positioning pin precision detection device is characterized in that the positioning pin detection device is provided with a gantry frame (7), the gantry frame (7) spans two trolley guide rails (301), the bottoms of two sides of the gantry frame are fixed on a conveyor line platform through a frame base (8), two sliding pin aligning assemblies (5) are symmetrically arranged on two sides of the gantry frame (7), pin aligning holes (501) are arranged above the trolley guide rails (301), and four datum measuring plates (4) are respectively arranged at four corners of the gantry frame (7).

4. The conveyor line trolley positioning pin precision detecting device as claimed in claim 3, wherein the sliding pin pair assembly (5) comprises a base mounting plate (502), a linear guide rail (503), a linear sliding block (504), a connecting block (505) and a detecting block (506);

the base mounting plate (502) is fixedly mounted on the gantry frame (7), the linear guide rail (503) is fixed on the base mounting plate (502), the linear sliding block (504) is connected to the linear guide rail (503) in a sliding mode to form a Z-direction linear sliding structure, the connecting block (505) is an L-shaped plate, one end of the connecting block is mounted on the linear sliding block (504) through a plurality of gaskets, the other end of the connecting block is connected with the detection block (506) through a plurality of gaskets, and the pair of pin holes (501) are formed in the bottom of the detection block (506).

5. The precision detection device for the positioning pin of the conveying line trolley according to claim 4, characterized in that a handle (9) is connected to the top of the connecting block (505), and a grip of the handle (9) is clamped at a notch on the top of the base mounting plate (502).

6. The conveyor line trolley positioning pin precision detecting device as claimed in claim 1, wherein a measuring hole (401) is formed in the reference measuring plate (4), and a dust cover is additionally arranged to protect the measuring hole (401).

7. The precision detection device for the positioning pin of the conveying line trolley according to claim 2, wherein the X-direction limiting device (1) is arranged between the two trolley guide rails (301), and the X-direction limiting device (1) comprises a limiting block (101), a clamping block (102), a propelling cylinder (103), a limiting guide rail (104) and a fixing frame (105);

the limiting guide rail (104) and the propulsion cylinders (103) are fixed on the conveying line platform through the fixing frame (105), the limiting blocks (101) and the clamping blocks (102) are respectively connected to two sides of the limiting guide rail (104) in a sliding mode, and the two propulsion cylinders (103) are respectively driven to move towards or away from the limiting guide rail (104) in the opposite direction.

8. The conveyor line trolley positioning pin precision detection device is characterized in that a clamping gap formed when the limiting block (101) and the clamping block (102) approach to each other is matched with the shape of a front cross beam of the trolley.

9. The conveyor line trolley positioning pin precision detection device as claimed in claim 2, wherein four Y-direction limiting devices (2) are provided, and the four Y-direction limiting devices (2) are distributed at two ends of the two trolley guide rails (301) and used for carrying out Y-direction limiting on two sides of a trolley.

10. The precision detection device for the positioning pin of the conveying line trolley as claimed in claim 9, wherein the Y-direction limiting device (2) comprises a clamping block (201), a swing arm (202), a powerful clamping cylinder (203) and a supporting seat (204);

powerful die clamping cylinder (203) pass through supporting seat (204) to be fixed on the transfer chain platform, the output of powerful die clamping cylinder (203) with the one end of swing arm (202) is connected for the drive swing arm (202) carries out 90 degrees swings, clamp splice (201) are installed the end of swing arm (202).

Images